Datasheet
Table Of Contents
- List of Sections
- Table of Contents
- General Description
- Central Processing Unit (CPU)
- Pinout and Signal Description
- System Configuration
- Registers
- Operating Modes
- Resource Mapping
- Bus Control and Input/Output
- Resets and Interrupts
- Voltage Regulator (VREG)
- Flash EEPROM 256K
- EEPROM 4K
- Port Integration Module
- Clocks and Reset Generator (CRG)
- Pulse Width Modulator (PWM)
- Enhanced Capture Timer (ECT)
- Serial Communications Interface (SCI)
- Serial Peripheral Interface (SPI)
- Inter-IC Bus (IIC)
- MSCAN
- Analog to Digital Converter
- Byte Data Link Controller Module
- Contents
- Overview
- Features
- Block Diagram
- Register Map
- Functional Description
- Register Descriptions
- External Pin Descriptions
- Reset Initialization/Basic Operation
- Transmitting A Message
- Receiving A Message
- Transmitting An In-Frame Response (IFR)
- Receiving An In-Frame Response (IFR)
- Special BDLC Operations
- Modes of Operation
- Interrupt Operation
- Low Power Options
- Background Debug Module (BDM)
- Breakpoint (BKP) Module
- Revision History
- Glossary
- Literature Updates

General Description
Features
MC9S12DP256 — Revision 1.1
General Description
• 8 PWM channels with programmable period and duty cycle
– Standard 8-bit 8-channel or 16-bit 4-channel or any
combination of 8/16 bit
– Separate control for each pulse width and duty cycle
– Left-aligned or center-aligned outputs
– Programmable clock select logic with a wide range of
frequencies
– Fast emergency shutdown input
– Usable as interrupt inputs
• Serial interfaces
– Two asynchronous Serial Communications Interfaces (SCI)
– Three synchronous Serial Peripheral Interfaces (SPI)
• SIM (System integration module)
– CRG (low current oscillator, PLL, reset, clocks, COP
watchdog, real time interrupt, clock monitor)
– MEBI (Multiplexed External Bus Interface)
– MMC (Module Mapping Control)
– INT (Interrupt control)
– BKP (Breakpoints)
– BDM (Background Debug Mode)
• 112-Pin LQFP package or 80-Pin QFP package
– 50 MHz CPU equivalent to 25MHz bus operation
– 2.25 to 2.75V Digital Supply Voltage generated using an
internal voltage regulator
– 4.75V to 5.25V Analog and I/O Supply Voltage
• Technology: 0.25 micron CMOS
Freescale Semiconductor, I
Freescale Semiconductor, Inc.
For More Information On This Product,
Go to: www.freescale.com
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